A lead-based reactor zero-power physical experiment device
A physical experiment and zero-power technology, applied in the field of nuclear engineering, can solve the problem of inability to meet the critical and subcritical operation capabilities of coupled accelerators, the uneven distribution of core power and neutron flux, and the inability to achieve subcritical and critical dual-mode operation And other issues
Active Publication Date: 2018-03-23
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
[0004] The above disclosed patents cannot meet the requirements of coupled accelerators and have both critical and subcritical operation capabilities, and cannot achieve subcritical and critical dual mode operation, and there is also the inhomogeneity of core power and neutron flux distribution in an external neutron source driven environment question
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[0030] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0031] refer to figure 1 and figure 2 , the structural features of the present invention are described in detail as follows:
[0032] A lead-based stack zero-power physics experiment device, comprising a stack container 1, and further comprising:
[0033] The fuel element 2 is arranged in the stack container 1, and rare earth elements are added to the fissile material in the fuel element 2;
[0034] A solid lead alloy breeder 3 is provided in the stack container 1 and filled between the fuel elements 2;
[0035] The reflective layer 4 is arranged on the inner wall of the stack container 1;
[0036] Neutron source system 6. After the center of the stack container 1...
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The invention provides a zero power physical experimental device for a lead-base reactor. The zero power physical experimental device comprises a reactor vessel, a fuel element, a solid lead breeder, a reflection layer, a reactivity control system, a neutron source system and a shielding system. According to the invention, the solid lead breeder is flexibly spliced with a stub of the fuel element, so that the modularized arrangement of various reactor core structures in the experimental device can be realized; the subcritical and critical double-model running of the experimental device can be realized by inserting or drawing a neutron absorbing component containing tungsten metal into or from the reactor vessel; rare earth elements are added into fissile materials in the fuel element, so that the uniformity problem of reactor core power and neutron-flux distribution under the neutron source driving condition can be solved; a novel granular neutron absorbing material is adopted, so that the flexible structure and convenient recycling of the shielding system are realized.
Description
technical field [0001] The invention relates to the technical field of nuclear engineering, in particular to a lead-based reactor zero-power physical experiment device, which is suitable for experimental verification of neutron physical properties of lead-based reactors. Background technique [0002] To study the neutron physical characteristics of a reactor, it is usually necessary to build a physical experimental device for verifying mathematical models and physical calculation programs, conducting research on reactivity monitoring and measurement techniques, and providing data for reactor safety evaluation and licensing. The chemical properties of lead alloy are very stable, and it is a solid structure under normal temperature and pressure. Therefore, the structure of the physical experiment device using lead alloy as the coolant must be different from that of the light water reactor and the sodium-cooled fast reactor. In addition, due to the good neutronic performance, s...
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IPC IPC(8): G21C23/00
CPCG21C23/00Y02E30/30
Inventor 吴宜灿吴庆生刘超赵柱民李春京蒋洁琼刘少军宋钢李亚洲
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI